Configuring the platform to provide single sign-on (SSO) with the operating system enables a user, who has successfully logged into the operating system, to access resources protected by the platform without having to reauthenticate. The rich client stores security-related information, such as authentication credentials (passwords), keys, and certificates in the local credential store. When SSO with the operating system is enabled, the platform checks the user name and password information that a user provides to log into the operating system against the user name and password information stored in the local credential store. If the two match, the platform grants access to secure platform resources without prompting the user to provide credentials a second time. Single sign-on with the operating system for platform products is supported on the following operating systems: